Add interfaces for File and Directory wrappers

src/CallbackWrapper.php

@@ -62,7 +62,7 @@ class CallbackWrapper extends Wrapper {
 		return $wrapped;
 	}
 
-	public function stream_open() {
+	public function stream_open($path, $mode, $options, &$opened_path) {
 		$context = $this->loadContext('callback');
 
 		if (isset($context['read']) and is_callable($context['read'])) {

src/Directory.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Licensed under the MIT license:
+ * http://opensource.org/licenses/MIT
+ */
+
+namespace Icewind\Streams;
+
+/**
+ * Interface for stream wrappers that implements a directory
+ */
+interface Directory {
+	/**
+	 * @param string $path
+	 * @param array $options
+	 * @return bool
+	 */
+	public function dir_opendir($path, $options);
+
+	/**
+	 * @return string
+	 */
+	public function dir_readdir();
+
+	/**
+	 * @return bool
+	 */
+	public function dir_closedir();
+
+	/**
+	 * @return bool
+	 */
+	public function dir_rewinddir();
+}

src/File.php

@@ -0,0 +1,86 @@
+<?php
+/**
+ * Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Licensed under the MIT license:
+ * http://opensource.org/licenses/MIT
+ */
+
+namespace Icewind\Streams;
+
+/**
+ * Interface for stream wrappers that implements a file
+ */
+interface File {
+	/**
+	 * @param string $path
+	 * @param string $mode
+	 * @param int $options
+	 * @param string &$opened_path
+	 * @return bool
+	 */
+	public function stream_open($path, $mode, $options, &$opened_path);
+
+	/**
+	 * @param string $offset
+	 * @param int $whence
+	 * @return bool
+	 */
+	public function stream_seek($offset, $whence = SEEK_SET);
+
+	/**
+	 * @return int
+	 */
+	public function stream_tell();
+
+	/**
+	 * @param int $count
+	 * @return string
+	 */
+	public function stream_read($count);
+
+	/**
+	 * @param string $data
+	 * @return int
+	 */
+	public function stream_write($data);
+
+	/**
+	 * @param int $option
+	 * @param int $arg1
+	 * @param int $arg2
+	 * @return bool
+	 */
+	public function stream_set_option($option, $arg1, $arg2);
+
+	/**
+	 * @param int $size
+	 * @return bool
+	 */
+	public function stream_truncate($size);
+
+	/**
+	 * @return array
+	 */
+	public function stream_stat();
+
+	/**
+	 * @param int $operation
+	 * @return bool
+	 */
+	public function stream_lock($operation);
+
+	/**
+	 * @return bool
+	 */
+	public function stream_flush();
+
+	/**
+	 * @return bool
+	 */
+	public function stream_eof();
+
+	/**
+	 * @return bool
+	 */
+	public function stream_close();
+}

src/NullWrapper.php

@@ -28,7 +28,7 @@ class NullWrapper extends Wrapper {
 		return $wrapped;
 	}
 
-	public function stream_open() {
+	public function stream_open($path, $mode, $options, &$opened_path) {
 		$this->loadContext('null');
 		return true;
 	}

src/Wrapper.php

@@ -12,7 +12,7 @@ namespace Icewind\Streams;
  *
  * This wrapper itself doesn't implement any functionality but is just a base class for other wrappers to extend
  */
-abstract class Wrapper {
+abstract class Wrapper implements File {
 	/**
 	 * The wrapped stream
 	 *